Blower construction



, Oct. 12, 1937. v E. CAMERINO 2,095,230

BLOWER CONSTRUCTION Filed July 25, 1936 INVENTOR ERNEST GAMER/N0 @Z MM ATTORNEYS Patented Oct. 12, 1937 Ernest Camel-inc, New York, N. Y. i Application July 25, 1936, serial No. 92,480

1 Claim. (01. 2s0-1s2) present invention relates to blowers, and

aims to devise a device of the general character indicated, which is simple in construction, easy and economical to fabricate and assemble, and 5 admirably adapted to perform the intended functions hereinafter more specifically referred to.

While not limited thereto, the blowers of the present invention find particular use in connection with domestic oil burners, wherein it is desired to obtain a constant flow of air to the nozzle, where carburation with the fuel takes place, but Where it is desired that said constant flow be at a relatively slow velocity.

In the accompanying specification I shall describe, and in the annexed drawing show, an illustrative embodiment of the blowers of the present invention. It is, however, to be clearly understood that I do not wish to be limited to the exact details shownand described herein for purposes of illustration only, inasmuch as minor changes therein may be made, without the exercise of invention within the scope of the claims hereto appended. V

In the accompanying drawing, the single figure is a partial side elevational, partial longitudinal sectional View of a blower, made in accordance with the present invention.

Before describing my invention in detail, I deem it advisable briefly to refer to the methods presently being used, the disadvantages thereof, andthe manner in which the present invention overcomes the said disadvantages.

The constant flow of air at a relatively'slow velocity has been obtained up to the present time by one of two methodszf Either a special motor is used in connection with the blower, which motor has a low R. P. M., or, if a standard motor is used, then relatively complicated baffie systems must be employed in order to reduce the 40 velocity of the air delivered by the blower. The first of these methods is obviously uneconomical, and prevents standardization. The second of these methods has been found'to be not only complicated, but expensive, inefiicient, and entirely inadequate for the intended purpose.

By means of the present invention I provide into the blades of the impeller.

. burner.

;lindrical in shape, and which is provided with an air inlet 1, through which air may be drawn The housing 6 is adapted to confine any desired type of impeller (not shown), which is driven by a standard elec- 5 tric motor (not shown).

I provide the housing 6 with an arcuate extension 8, the inner edge 9 thereof, together with the extending wall l8, forming a continuation of the cylindrical casing of the blower, and present- 10 ing an opening H through which the impeller expels the air. Adjacent the end 9 of the extension 8, I provide across the housing, a baffle H, which, together with the extended wall ll], presents a restricted passage 3, which leads to a 15 chamber M in the lower end of the casing l5.

It is to be noted that the. angle l6, between the base I! and the side wall ll] of the casing l5 is a right angle. And it is further to be noted other side wall 19 of the casing 15 is also a right angle. Finally, the angle between the outer surface of the baflle l2, and the outer surface of the arcuate extension 8, at 2|, is likewise a substantial right angle. It is to be noted that 25 the walls I0, I! and I9 constitute extensions of the-housing 6. Extending outwardly from the housing 6 and casing I5 is a nozzle 20 at the outer extremity of which carburation takes place, and thefuel is burned in the fire box of the After the air passes from the blower through the opening I I and passage l3, it takes the courses indicated by the arrows. As the air reaches the base il, it rebounds, and in rebounding meets additional air coming downwardly through said opening and passage. This causes turbulences at the angle 16, between the side wall and base of the casing. The velocity, therefore, of the air is somewhat retarded. Because of the shape of the casing, the air is now directed laterally toward the wall [9. As it reaches this wall, it rebounds, and causes turbulences at the angle I8, between the base I! and the wall It. The velocity is therefore further retarded. In 5 view of the battle l2, the air is now directed upwardly, until it contacts against the extension 8, where it again rebounds, and additional turis caused to take a tortuous path; that is, it is first directed downwardly, then laterally, then upwardly, and finally laterally. By causing the air to take such a path, turbulences are set up at various points, which retard the velocity, so that by the time the air reaches the point where it is carburated with the fuel, it has been slowed down to the proper velocity. V

This completes the description of the aforesaid illustrative embodiment of--the-aforesaid invention. It willbe noted from such'description that the blowers of the present invention are simple in construction, easy and economical to fabriintegrally formed with said housing for directing the flow of air delivered by the impeller in a predetermined direction, said means comprising an extension of said housing and a cooperating baffle wall integrally formed with said'housing means cooperable with said first-named means for altering the direction of the air flow at a right angle to the first direction, and setting up turbulences therein for retarding the velocity thereof, said second named means comprising a continuation of said extension at right angles thereto, spaced from said baffle wall perpendicularly thereto, means for again altering the direction of the air flow and setting up additional turbulences therein, said third named means comprising an extension of said second named means at right angles thereto and parallel to said first named means and said cooperating baflie wall, and means for directing the flow of air to an outlet ERNEST CAMERINO. 

